1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2751d5baaacc2c6fab9c871c6bf4db18529959a86a887703546ba63f9b6629fc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45241f99-f72c-412c-8322-dd7178167045.json and https://artists.proofprofile.net/proofs/artist/45241f99-f72c-412c-8322-dd7178167045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Have Never Forgotten You When Flowers Are Growing.
Becoming Your Star Neoui Byeoli Doeeoseo
On A Clear Morning, Malg Eun Achim E Neowa
A Sleeping Night Waiting For You Neoleul Gidalida Jamdeun Bam
The Memory Of Your Stay Nega Meomuneun Gieog